Rock drill mounting



Decl, 1936. E. G. GARTIN ROCK DRILL MOUNTING Filed March 22, 1935 .10 a rock drill of the `drifter type.

Patented Dec. 1, 1936y PATENTI OF FICE VROCK DRILL" MOUNTING Elmer G. Gattin, ClaremontyNrH., assigner to Sullivan Machinery Company, a corporation yof Massachusetts Application March 22, 1933, Serial No. 662,125

15 Claims.

This invention relates to rock drill mountings, and more particularly, but not exclusively, to improvements in an adjustableguide shellmounting for a rock drill of the drifter type. L An object of this invention is to provide `an improved rock drill mounting. .Another object is to provide an improved mounting for a drifter type rock drill. A further object is to provide .an improved adjustable guide shell mounting for Still another object is toprovide an improved adjustable guide shell mounting having simple and effective means vto compensate for any wear of the drillguides. "Yet another object is to provide an improved adjustable guide shell mounting having improved adjusting means for the drill guideways to compensate for the wear of the drill guides. A'still further object is to provide simple and effective means whereby wear of the parts in the mounting ,20 of a rock drill can be taken up and `said parts eiectively held in their adjusted relation. These and other objects and advantages of the-invention will, however, hereinafter more fully appear.

In the accompanying drawing there is shown for purposes ofillustration one'form which-the invention may assume in practice.

In this drawing,-

Fig. 1 is a side elevational View of the killustrative form of the improved guide shell mounting having a rock drill of the drifter type mounted thereon.

Fig. 2 is a transverse vertical sectional `View taken substantially on line 2-2 of Fig. 1.

Fig. v3 is a detail sectional view taken on line 3--3 of Fig. 2.

Fig. 4 is a perspective View illustrating one of the eccentric adjusting elements.

In this illustrative embodiment of the invention there is shown a rock drill generally designated I of a well known design comprising a casing 2 having lateral guides 3, 3 adapted for sliding movement along the guideways 4, 4 of a guide shell mounting 5. 'Ihe rock drill may be fed along the guide shell by any suitable means such as a manually rotatable feed'screw journaled on thevshell and engaging a feed nut on the drill in the mannerwell known to those skilled in the art.

In this illustrative construction the shell guideways 4, 4 are madeadjustable'to compensate `'for any Wear of the drill guides 3, y3, as hereinafter described. The guide shell comprises a 'body 6 composed of longitudinal angle'members 1, Tarranged side by side in parallel relation and'hav- -ing their vertical sides or iianges 8, `8 welded'to `55 `a llongitudinally and horigontally vdisposed chan nel-'member' 9. A'Welded vto the vbottom surface of the member 9 is `a usual'trunnion engaging support o-r-swivel I0. The horizontal upper flanges or sides II, II-of the parallel angle'members'L' constitute the-bottom wear plates of the drill 5 l'g1`1ideWays-4, `4. The upper wear plates of thesev -guideways are formed by angle members I2, I2 arranged outside of the angle members "I,"I, as shown-in"Fig.2, and-having depending anges or `sides I3, I3 arranged parallel withAtheilanges-of 10 the inner angle members 1,'1. -The upper wear plates -are made adjustable relative tothe inner Wear plates, and the means for adjusting the same comprises boss-like projections I4 rwelded to the outer sides ofthe vertical 'flanges of the anglels members 'I, 'I and arranged at spaced points along the length of the angle members. 'I'hese 'proijections are provided with threaded openings I5 "'for vreceiving adjusting screws I6. Rotatably )mounted on these screws are adjusting elements 20 IThaving reduced eccentric portions fitting within bores I8 lformed within depending lugs I9 integral with theangle members I2. When any Wear ofthe drill guides 3, 3 occurs such wear may betaken up by loosening the screws I6 andf4 `rotating the eccentric-adjusting elements I'I to move the angle members forming the upper wear plates -inwardlytoward the angle `members "'I, I 'forming the inner wear plates, `the screwsthereafter being tightened lto rigidly clamp 'the ad-k justing elements I1 in position between the pro- Y jections I4vand the heads of 'the screws. Means vis also Iprovided for adjusting the outer angle members I2, I2 laterally relative to the inner angle members 1, 'I andherein .comprises shims or washers 20 interposed betweenthe projections I4 .and the inner surfaces of the adjusting elements I1. When it is desired to adjust the angle members I 2, I2 laterally, this may be accomplished byinserting or removing the shims. 40 As aresult of this invention it will be noted'that `an improved adjustable guide shell for a rock drill is provided having improved and simplied adjusting means for effectively taking up both lateraland vertical wear of the drill guides. It will further be noted that the improved adjustf ing means'are of a simple vvand rugged construction which may be readily adjusted and which are vof a construction whereby the shell may not `be materially heavier than the ordinary type of guide Yshell Without such adjusting means. It will' l' still further be evident that by the provision of 'separate adjusting devices for effecting lateral and vertical adjustments of the upper wear plates pensate for dillerent degrees of vertical and lateral wear upon the guides, a feature of distinct advantage over guide shells of the ordinary type or adjustable guide shells having but a single lattom wear plates to vary the width of the guideways including adjusting elements interposable between the sides of the shell body and said eccentric adjusting elements.

5 eral or vertical adjustment or a single adjust- 5. An adjustable guide shell for rock drills in- 5 able device for both adjustments. These and cluding a shell body having, when in horizontal other uses and advantages of the improved adposition, horizontal guideways formed by bottom justable guide shell will be clearly apparent to Wear plates and cooperating adjustable top wear those skilled `in the art. plates, and means for adjusting said top wear l0 While there is in this application specifically plates vertically toward and from said bottom 10 described one form which the invention may as-" wear plates to vary the height of the guideways sume in practice, it will be understood that this including eccentric adjusting elements mounted form of the same is shown for purposes of illuson the shellbody and operatively connected to the tration and that the invention may be modified top Wear plates, said adjusting elements rotatand embodied in various other forms without deable on horizontal axes extending transversely 15 parting from its spirit or the scope of the apacross the guide shell, and means for adjusting pended claims. i said top wear plates laterally relative to the bot- What I claim as new and desire to secure by tom wear plates to vary the width of the guide- Letters Patent is: Ways including adjusting elements interposable 1. An adjustable guide shell for rock drills inbetween the sides of the shell body and said ec- 20 cluding a shell body having, when in horizontal centric adjusting elements, and means for clampposition, horizontal guideways formed by bottom ing Said eeeentricadjusting elements and Said wear plates and cooperating adjustable top wear lateral adjusting means in Statienary adjusted plates, and means for adjusting said top wear DOSitiOn With respect t0 the Shell b0dyplates vertically toward and from said bottom 6 An adjustable guide Shell fOr rock drills in- '25 wear plates to vary the height of the guideways Cluding a shell bOdy having, When in hOrZOntal including eccentric adjusting elements rotatable positionfhorizontal suideways formed by bottom on horizontal axes extending transversely across Wear Plates and COOpeIating top Wear plates, and

,l the guide shell and operatively interposed bemeans fOI' adjusting SaidtOD Wear Plates Verti-v tween the Shen body and Said top Wear plates, cally toward and from said bottom wear plates to 30 and means for holding said adjusting elements in Vary the height 0f the guideways including eccenthoir adjusted position tric adjusting elements mounted on the shell 2. An adjustable guide shell for rock drills inbOdy and OPeIatlVely Genneeted t0 the t0n Wear cluding a shell body having, when in horizontal Plates, Said adjusting elements IOtatablc en heriposition, horizontal guideways formed by bottom Zontal aXeS extending transversely aCrOSs the 35 Wear plates and cooperating adjustable topwear guide Shell, and means for adjusting said t0n plates, and means for adjusting said top wear wear plates laterally relative to the bottom wear plates vertically toward and from said bottom plates to vary the width of the guid'eways includwear plates to vary the height of said guideways ing adjusting means intel'pOSeable between the 40 .including horizontal screws threadedly connect- Sides 0f the Shell bOdy and Said eccentric adjust 40 ed to the sides of the shell body and having their ing elements, andrneans for clamping said eccenouter ends projecting horizontally laterally from tric adjusting elements and Said lateral adjusting the sides of the shell body and eccentric adjustmeans into stationary adjusted position with reing elements rotatably mounted on said screws Speet t0 the Shell body including a plurality 0f and operatively connected to said adjustable top Separate adjusting rdeViees One individual t0 each 45 Wear plates. eccentric adjusting element.

3. An adjustable guide shell for rock drills in- 'l- An adjustable guide Shell fOI TO'Ck drills ncluding a shell body having, when in horizontal cluding a shell body having, When in horizontal position, horizontal guideways formed by bottom position, horizontal guideways formed by bottom wear plates and cooperating adjustable top Wear Wear plates and @Generating adjustable tOp Wea 50 plates, kand means for adjusting said top wear plates, and means for adjusting said tcp wear siplates vertically toward and from said bottom Plates yeftieally tOWaId and fI'Oln Said bOttOYn "'*wear plates to Vary the height of the guideways Wear plates t0 Vary the height 0f the guideWayS including horizontal screws threadedly connected including eccentric adjusting elements mounted 5 tagthefsides of the shell body and having their g on the shell body and operatively connected to the' 55 Wcouter:endsaprojecting horizontally laterally from top Wear plates, said adjusting elements rotatefthe: sidesirofifthe shell body and eccentric adjustable on horizontal axes extending transversely ENfingeelernentsrotatably mounted on said screws across the guide shell, means for adjusting said and:iopratitelyifconnected to the adjustable top top wear plates laterally relative t0 the bOttOlil` swearnplates;saidi'screwsswhen tightened clamping Wear plates to vary the width of the guideways 60 said; adjustingv elementsgfagainst rotation relaincluding shims interposeable between the sides ve tozisaidqscrewseand s hellgbedy. i of the shell body and said eccentric adjusting eleadju'stable'igll-ide she for rock drills inments, and means for clamping said eccentric ad- .fshelllodyihaving;l .hen nin horizontal justing elements and said shims in stationary ad-vv ,horizontal;guidewaysgforomed-vby bottom justed position with respect to the shell body. v

8. An adjustable guide shell for ro'ck drills including a, shell body having, when in horizontal position, horizontal guideways formed by bottom wear plates and cooperating top Wear plates, and

means for adjusting said top wear plates vertiallyi toward and vfrom said bottom wear plates ary the height of the gudeways including eco) adjusting elements mounted on the shell `orlywarid,,A,igeratively connected to the top wear plates, said adjusting elements rotatable on hori zontal axes extending transversely across the guide sh-ell, and means for adjusting said top wear plates laterally relative to the bottom wear plates to vary the width of the guideways including shims interposeable between the sides of the shell body and said eccentric adjusting elements, and means for clamping said eccentric adjusting elements and said shims in stationary adjusted position with respect to the shell body including a plurality of separate adjusting devices one individual to each eccentric adjusting element.

9. An adjustable guide shell for rock drills including a shell body having, when in horizontal position, Horizontal guideways formed by bottom wear plates and cooperating adjustable top wear plates, and means for adjusting said wear plates relative to each other to vary the height of the gudeways including eccentric adjusting elements rotatably mounted on the side of the shell body on horizontal axes extending transversely across the shell body and operatively connected to the top wear plates, said eccentric adjusting elements adjustable into different positions to vary the relation of the top and bottom plates, and means projecting horizontally from the sides of the shell body and adjustable relative to said eccentric elements for holding said eccentric elements in their different adjusted positions.

10. An adjustable guide shell for rock drills including a shell body having, when in horizontal position, horizontal guideways formed by bottom wear plates and cooperating adjustable top wear plates, and means for adjusting said top wear plates toward and from said bottom wear plates to vary the height of the guideways including a plurality of eccentric elements operatively connected to the top wear plates and rotatably mounted on the shell body to turn on horizontal axes extending transversely across the shell body, said top wear plates having integral portions provided with bores for receiving said eccentric elements, and means projecting horizontally from the sides of the shell body for holding said eccentric elements in their different adjusted positions.

l1. An adjustable guide shell for rock drills including a shell body having, when in horizontal position, horizontal guideways formed by bottom wear plates integral with the shell body and cooperating adjustable to-p wear plates, and means for adjusting said top Wear plates vertically to- Ward and from said bottom wear plates to vary the height of the guideways including adjustable eccentric elements rotatable on horizontal axes extending transversely across the shell body parallel with the plane of the guidevvays and operatively interposed between the shell body and the top wear plates, and means projecting horizontally laterally from the sides of the shell body for holding said eccentric elements in their adjusted position.

l2. An adjustable guide shell for rock drills including a shell body having, when in horizontal position, horizontal guideways formed by bottom wear plates and cooperating adjustable top Wear plates, said top plates having 4depending perforated lugs spaced along the length thereof, and means for adjusting said top Wear plates vertically toward and from said bottom wear plates to vary the height of the guideways including eccentric adjusting elements mounted on the shell body for rotation on horizontal axes extending transversely across the shell body parallel with the plane of the guideways and having eccentric portions arranged in the perforations in the top plate lugs, and means projecting horizontally laterally from the sides of the shell body and cooperating with said eccentric elements for holding the latter in their adjusted position.

13. An adjustable guide shell for rock drills including a shell body having, when in horizontal position, horizontal guideways formed by bottom wear plates and cooperating adjustable top wear plates, and means for adjusting said top plates vertically toward and from said bottom wear plates to vary the height of the guideways including eccentric adjusting elements operatively interposed between the shell body and the top Wear plates and rotatable about horizontal axes parallel with the planes of the wear plate surfaces, and means cooperating with said eccentric elements and projecting horizontally from the sides of the shell body for holding said eccentric elements in their adjusted position.

14. An adjustable guide shell for rock drills including a shell body having, when in horizontal position, guideways formed by bottom wear plates and cooperating adjustable top wear plates, the top plate having depending lugs spaced along the length thereof, and means for adjusting said top plates vertically toward and from the bottom wear plates to vary the height of the guideways including eccentric adjusting elements operatively interposed between the shell body and said top plate lugs and rotatable on horizontal axes parallel with the planes of the wear plate surfaces, and means cooperating with said eccentric elements and projecting horizontally from the sides of the shell body for holding said eccentric elements in their adjusted position.

l5. An adjustable guide shell for rock drills including a shell body having, when in horizontal position, guideways formed by integral bottom wear plates and cooperating adjustable top Wear plates, the shell body having projecting bosses formed thereon, said projecting bosses spaced along the length of the shell body and said top plates having depending lugs spaced along the length thereof and having openings adapted to register with openings in said bosses,v and means for adjusting the top plates vertically toward and from the bottom wear plates to vary the height of the guideways including screws threaded Within the openings in said bosses and projecting horizontally from the sides of the shell body, and eccentric adjusting elements rotatably mounted on said screws and having eccentric portions mounted in the openings in said lugs, said screws adapted to be tightened to hold the eccentric elements in their adjusted position.

ELMER G. GARTIN. 

